Question

A projectile moves from the ground such that its horizontal displacement is x=kt and vertical displacement is y=kt(1-at) where k and a are constants and t is time. Find out total time of flight (t) and maximum height attained .

Answer 1

Answer:

Explanation:

Horizontal Displacement = x=kt (Given)

Vertical Displacement = y=kt(1−αt)  (Given)

where k and a are the constants and t is the time.

Solving both the equations -

y = kt−kαt²

y = x−kαt²

y =x−kαx²/k²

Thus, a parabola will be formed.

Therefore, when a projectile moves from the ground a parabola will be formed.